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/*
* Xtensa processor core configuration information.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 1999-2007 Tensilica Inc.
*/
#ifndef _XTENSA_CORE_CONFIGURATION_H
#define _XTENSA_CORE_CONFIGURATION_H
/****************************************************************************
Parameters Useful for Any Code, USER or PRIVILEGED
****************************************************************************/
/*
* Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is
* configured, and a value of 0 otherwise. These macros are always defined.
*/
/*----------------------------------------------------------------------
ISA
----------------------------------------------------------------------*/
#define XCHAL_HAVE_BE 0 /* big-endian byte ordering */
#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */
#define XCHAL_NUM_AREGS 32 /* num of physical addr regs */
#define XCHAL_NUM_AREGS_LOG2 5 /* log2(XCHAL_NUM_AREGS) */
#define XCHAL_MAX_INSTRUCTION_SIZE 3 /* max instr bytes (3..8) */
#define XCHAL_HAVE_DEBUG 1 /* debug option */
#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */
#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */
#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */
#define XCHAL_HAVE_MINMAX 1 /* MIN/MAX instructions */
#define XCHAL_HAVE_SEXT 1 /* SEXT instruction */
#define XCHAL_HAVE_CLAMPS 1 /* CLAMPS instruction */
#define XCHAL_HAVE_MUL16 1 /* MUL16S/MUL16U instructions */
#define XCHAL_HAVE_MUL32 1 /* MULL instruction */
#define XCHAL_HAVE_MUL32_HIGH 0 /* MULUH/MULSH instructions */
#define XCHAL_HAVE_DIV32 1 /* QUOS/QUOU/REMS/REMU insns */
#define XCHAL_HAVE_L32R 1 /* L32R instruction */
#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */
#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */
#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */
#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */
#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */
#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */
#define XCHAL_HAVE_ABS 1 /* ABS instruction */
/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */
/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */
#define XCHAL_HAVE_RELEASE_SYNC 1 /* L32AI/S32RI instructions */
#define XCHAL_HAVE_S32C1I 1 /* S32C1I instruction */
#define XCHAL_HAVE_SPECULATION 0 /* speculation */
#define XCHAL_HAVE_FULL_RESET 1 /* all regs/state reset */
#define XCHAL_NUM_CONTEXTS 1 /* */
#define XCHAL_NUM_MISC_REGS 2 /* num of scratch regs (0..4) */
#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */
#define XCHAL_HAVE_PRID 1 /* processor ID register */
#define XCHAL_HAVE_THREADPTR 1 /* THREADPTR register */
#define XCHAL_HAVE_BOOLEANS 0 /* boolean registers */
#define XCHAL_HAVE_CP 1 /* CPENABLE reg (coprocessor) */
#define XCHAL_CP_MAXCFG 8 /* max allowed cp id plus one */
#define XCHAL_HAVE_MAC16 1 /* MAC16 package */
#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */
#define XCHAL_HAVE_FP 0 /* floating point pkg */
#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */
#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */
#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */
/*----------------------------------------------------------------------
MISC
----------------------------------------------------------------------*/
#define XCHAL_NUM_WRITEBUFFER_ENTRIES 8 /* size of write buffer */
#define XCHAL_INST_FETCH_WIDTH 4 /* instr-fetch width in bytes */
#define XCHAL_DATA_WIDTH 4 /* data width in bytes */
/* In T1050, applies to selected core load and store instructions (see ISA): */
#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */
#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/
#define XCHAL_SW_VERSION 701001 /* sw version of this header */
#define XCHAL_CORE_ID "dc232b" /* alphanum core name
(CoreID) set in the Xtensa
Processor Generator */
#define XCHAL_CORE_DESCRIPTION "Diamond 232L Standard Core Rev.B (LE)"
#define XCHAL_BUILD_UNIQUE_ID 0x0000BEEF /* 22-bit sw build ID */
/*
* These definitions describe the hardware targeted by this software.
*/
#define XCHAL_HW_CONFIGID0 0xC56307FE /* ConfigID hi 32 bits*/
#define XCHAL_HW_CONFIGID1 0x0D40BEEF /* ConfigID lo 32 bits*/
#define XCHAL_HW_VERSION_NAME "LX2.1.1" /* full version name */
#define XCHAL_HW_VERSION_MAJOR 2210 /* major ver# of targeted hw */
#define XCHAL_HW_VERSION_MINOR 1 /* minor ver# of targeted hw */
#define XCHAL_HW_VERSION 221001 /* major*100+minor */
#define XCHAL_HW_REL_LX2 1
#define XCHAL_HW_REL_LX2_1 1
#define XCHAL_HW_REL_LX2_1_1 1
#define XCHAL_HW_CONFIGID_RELIABLE 1
/* If software targets a *range* of hardware versions, these are the bounds: */
#define XCHAL_HW_MIN_VERSION_MAJOR 2210 /* major v of earliest tgt hw */
#define XCHAL_HW_MIN_VERSION_MINOR 1 /* minor v of earliest tgt hw */
#define XCHAL_HW_MIN_VERSION 221001 /* earliest targeted hw */
#define XCHAL_HW_MAX_VERSION_MAJOR 2210 /* major v of latest tgt hw */
#define XCHAL_HW_MAX_VERSION_MINOR 1 /* minor v of latest tgt hw */
#define XCHAL_HW_MAX_VERSION 221001 /* latest targeted hw */
/*----------------------------------------------------------------------
CACHE
----------------------------------------------------------------------*/
#define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */
#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */
#define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */
#define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */
#define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */
#define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */
#define XCHAL_DCACHE_IS_WRITEBACK 1 /* writeback feature */
/****************************************************************************
Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code
****************************************************************************/
#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY
/*----------------------------------------------------------------------
CACHE
----------------------------------------------------------------------*/
#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */
/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */
/* Number of cache sets in log2(lines per way): */
#define XCHAL_ICACHE_SETWIDTH 7
#define XCHAL_DCACHE_SETWIDTH 7
/* Cache set associativity (number of ways): */
#define XCHAL_ICACHE_WAYS 4
#define XCHAL_DCACHE_WAYS 4
/* Cache features: */
#define XCHAL_ICACHE_LINE_LOCKABLE 1
#define XCHAL_DCACHE_LINE_LOCKABLE 1
#define XCHAL_ICACHE_ECC_PARITY 0
#define XCHAL_DCACHE_ECC_PARITY 0
/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */
#define XCHAL_CA_BITS 4
/*----------------------------------------------------------------------
INTERNAL I/D RAM/ROMs and XLMI
----------------------------------------------------------------------*/
#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */
#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */
#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */
#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs */
#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/
#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports */
/*----------------------------------------------------------------------
INTERRUPTS and TIMERS
----------------------------------------------------------------------*/
#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */
#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */
#define XCHAL_HAVE_NMI 1 /* non-maskable interrupt */
#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */
#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */
#define XCHAL_NUM_INTERRUPTS 22 /* number of interrupts */
#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */
#define XCHAL_NUM_EXTINTERRUPTS 17 /* num of external interrupts */
#define XCHAL_NUM_INTLEVELS 6 /* number of interrupt levels
(not including level zero) */
#define XCHAL_EXCM_LEVEL 3 /* level masked by PS.EXCM */
/* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */
/* Masks of interrupts at each interrupt level: */
#define XCHAL_INTLEVEL1_MASK 0x001F80FF
#define XCHAL_INTLEVEL2_MASK 0x00000100
#define XCHAL_INTLEVEL3_MASK 0x00200E00
#define XCHAL_INTLEVEL4_MASK 0x00001000
#define XCHAL_INTLEVEL5_MASK 0x00002000
#define XCHAL_INTLEVEL6_MASK 0x00000000
#define XCHAL_INTLEVEL7_MASK 0x00004000
/* Masks of interrupts at each range 1..n of interrupt levels: */
#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x001F80FF
#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x001F81FF
#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x003F8FFF
#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x003F9FFF
#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x003FBFFF
#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x003FBFFF
#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x003FFFFF
/* Level of each interrupt: */
#define XCHAL_INT0_LEVEL 1
#define XCHAL_INT1_LEVEL 1
#define XCHAL_INT2_LEVEL 1
#define XCHAL_INT3_LEVEL 1
#define XCHAL_INT4_LEVEL 1
#define XCHAL_INT5_LEVEL 1
#define XCHAL_INT6_LEVEL 1
#define XCHAL_INT7_LEVEL 1
#define XCHAL_INT8_LEVEL 2
#define XCHAL_INT9_LEVEL 3
#define XCHAL_INT10_LEVEL 3
#define XCHAL_INT11_LEVEL 3
#define XCHAL_INT12_LEVEL 4
#define XCHAL_INT13_LEVEL 5
#define XCHAL_INT14_LEVEL 7
#define XCHAL_INT15_LEVEL 1
#define XCHAL_INT16_LEVEL 1
#define XCHAL_INT17_LEVEL 1
#define XCHAL_INT18_LEVEL 1
#define XCHAL_INT19_LEVEL 1
#define XCHAL_INT20_LEVEL 1
#define XCHAL_INT21_LEVEL 3
#define XCHAL_DEBUGLEVEL 6 /* debug interrupt level */
#define XCHAL_HAVE_DEBUG_EXTERN_INT 1 /* OCD external db interrupt */
#define XCHAL_NMILEVEL 7 /* NMI "level" (for use with
EXCSAVE/EPS/EPC_n, RFI n) */
/* Type of each interrupt: */
#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT6_TYPE XTHAL_INTTYPE_TIMER
#define XCHAL_INT7_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER
#define XCHAL_INT11_TYPE XTHAL_INTTYPE_SOFTWARE
#define XCHAL_INT12_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
#define XCHAL_INT13_TYPE XTHAL_INTTYPE_TIMER
#define XCHAL_INT14_TYPE XTHAL_INTTYPE_NMI
#define XCHAL_INT15_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT16_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT17_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT18_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT19_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT20_TYPE XTHAL_INTTYPE_EXTERN_EDGE
#define XCHAL_INT21_TYPE XTHAL_INTTYPE_EXTERN_EDGE
/* Masks of interrupts for each type of interrupt: */
#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFC00000
#define XCHAL_INTTYPE_MASK_SOFTWARE 0x00000880
#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x003F8000
#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000133F
#define XCHAL_INTTYPE_MASK_TIMER 0x00002440
#define XCHAL_INTTYPE_MASK_NMI 0x00004000
#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000
/* Interrupt numbers assigned to specific interrupt sources: */
#define XCHAL_TIMER0_INTERRUPT 6 /* CCOMPARE0 */
#define XCHAL_TIMER1_INTERRUPT 10 /* CCOMPARE1 */
#define XCHAL_TIMER2_INTERRUPT 13 /* CCOMPARE2 */
#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED
#define XCHAL_NMI_INTERRUPT 14 /* non-maskable interrupt */
/* Interrupt numbers for levels at which only one interrupt is configured: */
#define XCHAL_INTLEVEL2_NUM 8
#define XCHAL_INTLEVEL4_NUM 12
#define XCHAL_INTLEVEL5_NUM 13
#define XCHAL_INTLEVEL7_NUM 14
/* (There are many interrupts each at level(s) 1, 3.) */
/*
* External interrupt vectors/levels.
* These macros describe how Xtensa processor interrupt numbers
* (as numbered internally, eg. in INTERRUPT and INTENABLE registers)
* map to external BInterrupt<n> pins, for those interrupts
* configured as external (level-triggered, edge-triggered, or NMI).
* See the Xtensa processor databook for more details.
*/
/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */
#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */
#define XCHAL_EXTINT1_NUM 1 /* (intlevel 1) */
#define XCHAL_EXTINT2_NUM 2 /* (intlevel 1) */
#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */
#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */
#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */
#define XCHAL_EXTINT6_NUM 8 /* (intlevel 2) */
#define XCHAL_EXTINT7_NUM 9 /* (intlevel 3) */
#define XCHAL_EXTINT8_NUM 12 /* (intlevel 4) */
#define XCHAL_EXTINT9_NUM 14 /* (intlevel 7) */
#define XCHAL_EXTINT10_NUM 15 /* (intlevel 1) */
#define XCHAL_EXTINT11_NUM 16 /* (intlevel 1) */
#define XCHAL_EXTINT12_NUM 17 /* (intlevel 1) */
#define XCHAL_EXTINT13_NUM 18 /* (intlevel 1) */
#define XCHAL_EXTINT14_NUM 19 /* (intlevel 1) */
#define XCHAL_EXTINT15_NUM 20 /* (intlevel 1) */
#define XCHAL_EXTINT16_NUM 21 /* (intlevel 3) */
/*----------------------------------------------------------------------
EXCEPTIONS and VECTORS
----------------------------------------------------------------------*/
#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture
number: 1 == XEA1 (old)
2 == XEA2 (new)
0 == XEAX (extern) */
#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */
#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */
#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */
#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */
#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */
#define XCHAL_HAVE_VECTOR_SELECT 1 /* relocatable vectors */
#define XCHAL_HAVE_VECBASE 1 /* relocatable vectors */
#define XCHAL_VECBASE_RESET_VADDR 0xD0000000 /* VECBASE reset value */
#define XCHAL_VECBASE_RESET_PADDR 0x00000000
#define XCHAL_RESET_VECBASE_OVERLAP 0
#define XCHAL_RESET_VECTOR0_VADDR 0xFE000000
#define XCHAL_RESET_VECTOR0_PADDR 0xFE000000
#define XCHAL_RESET_VECTOR1_VADDR 0xD8000500
#define XCHAL_RESET_VECTOR1_PADDR 0x00000500
#define XCHAL_RESET_VECTOR_VADDR 0xFE000000
#define XCHAL_RESET_VECTOR_PADDR 0xFE000000
#define XCHAL_USER_VECOFS 0x00000340
#define XCHAL_USER_VECTOR_VADDR 0xD0000340
#define XCHAL_USER_VECTOR_PADDR 0x00000340
#define XCHAL_KERNEL_VECOFS 0x00000300
#define XCHAL_KERNEL_VECTOR_VADDR 0xD0000300
#define XCHAL_KERNEL_VECTOR_PADDR 0x00000300
#define XCHAL_DOUBLEEXC_VECOFS 0x000003C0
#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0xD00003C0
#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x000003C0
#define XCHAL_WINDOW_OF4_VECOFS 0x00000000
#define XCHAL_WINDOW_UF4_VECOFS 0x00000040
#define XCHAL_WINDOW_OF8_VECOFS 0x00000080
#define XCHAL_WINDOW_UF8_VECOFS 0x000000C0
#define XCHAL_WINDOW_OF12_VECOFS 0x00000100
#define XCHAL_WINDOW_UF12_VECOFS 0x00000140
#define XCHAL_WINDOW_VECTORS_VADDR 0xD0000000
#define XCHAL_WINDOW_VECTORS_PADDR 0x00000000
#define XCHAL_INTLEVEL2_VECOFS 0x00000180
#define XCHAL_INTLEVEL2_VECTOR_VADDR 0xD0000180
#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00000180
#define XCHAL_INTLEVEL3_VECOFS 0x000001C0
#define XCHAL_INTLEVEL3_VECTOR_VADDR 0xD00001C0
#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x000001C0
#define XCHAL_INTLEVEL4_VECOFS 0x00000200
#define XCHAL_INTLEVEL4_VECTOR_VADDR 0xD0000200
#define XCHAL_INTLEVEL4_VECTOR_PADDR 0x00000200
#define XCHAL_INTLEVEL5_VECOFS 0x00000240
#define XCHAL_INTLEVEL5_VECTOR_VADDR 0xD0000240
#define XCHAL_INTLEVEL5_VECTOR_PADDR 0x00000240
#define XCHAL_INTLEVEL6_VECOFS 0x00000280
#define XCHAL_INTLEVEL6_VECTOR_VADDR 0xD0000280
#define XCHAL_INTLEVEL6_VECTOR_PADDR 0x00000280
#define XCHAL_DEBUG_VECOFS XCHAL_INTLEVEL6_VECOFS
#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR
#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL6_VECTOR_PADDR
#define XCHAL_NMI_VECOFS 0x000002C0
#define XCHAL_NMI_VECTOR_VADDR 0xD00002C0
#define XCHAL_NMI_VECTOR_PADDR 0x000002C0
#define XCHAL_INTLEVEL7_VECOFS XCHAL_NMI_VECOFS
#define XCHAL_INTLEVEL7_VECTOR_VADDR XCHAL_NMI_VECTOR_VADDR
#define XCHAL_INTLEVEL7_VECTOR_PADDR XCHAL_NMI_VECTOR_PADDR
/*----------------------------------------------------------------------
DEBUG
----------------------------------------------------------------------*/
#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */
#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */
#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */
#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */
/*----------------------------------------------------------------------
MMU
----------------------------------------------------------------------*/
/* See core-matmap.h header file for more details. */
#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */
#define XCHAL_HAVE_SPANNING_WAY 0 /* one way maps I+D 4GB vaddr */
#define XCHAL_HAVE_IDENTITY_MAP 0 /* vaddr == paddr always */
#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */
#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* region protection */
#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */
#define XCHAL_HAVE_PTP_MMU 1 /* full MMU (with page table
[autorefill] and protection)
usable for an MMU-based OS */
/* If none of the above last 4 are set, it's a custom TLB configuration. */
#define XCHAL_ITLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */
#define XCHAL_DTLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */
#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs */
#define XCHAL_MMU_RINGS 4 /* number of rings (1..4) */
#define XCHAL_MMU_RING_BITS 2 /* num of bits in RING field */
#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */
#endif /* _XTENSA_CORE_CONFIGURATION_H */
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